From: Tom Haynes Subject: Re: mount retries Date: Fri, 02 Oct 2009 21:35:21 -0500 Message-ID: <4AC6B869.60002@excfb.com> References: <4AC67481.20900@excfb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linux-nfs@vger.kernel.org To: Chuck Lever Return-path: Received: from eastrmmtao103.cox.net ([68.230.240.9]:51885 "EHLO eastrmmtao103.cox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751853AbZJCCgI (ORCPT ); Fri, 2 Oct 2009 22:36:08 -0400 In-Reply-To: Sender: linux-nfs-owner@vger.kernel.org List-ID: Chuck Lever wrote: > > The exact retry behavior depends on whether user space or the kernel > is trying to do the talking. NFSv4 and text-based NFSv2/v3 mounts do > most of the talking from the kernel. Text-based mounts do a user > space pmap query or two, but the MNT request comes from the kernel. > Also, UDP retries a few times, but usually gives up after 30 seconds > or so, but TCP can retry the transport connect for over 3 minutes, > even before it gets to send any requests at all. > > I'm pretty sure I didn't answer your question. Thanks Chuck, you actually nailed what I didn't ask properly. The UDP retries being at 30s correlates with what I was seeing.